Reciprocating type test fixture for online detection of elastic arm

The utility model discloses a reciprocating type test fixture for online detection of an elastic arm, which comprises a bottom plate (5), a fixed seat (6) is fixedly arranged on the top surface of the bottom plate (5), a groove (7) is arranged on the top surface of the fixed seat (6), a positioning block (8) is fixedly arranged in the groove (7), and a positioning pin (9) positioned on the front side of the positioning block (8) is fixedly arranged on the top surface of the fixed seat (6). A guide seat (10) and a reciprocating air cylinder (11) are fixedly arranged on the top surface of the bottom plate (5), the guide seat (10) is arranged between the reciprocating air cylinder (11) and the fixing seat (6), a piston rod of the reciprocating air cylinder (11) is installed in a guide hole of the guide seat (10) in a sliding mode, the piston rod penetrates through the guide seat (10) rightwards, and a push block (12) is fixedly arranged at the extending end of the piston rod. The utility model has the beneficial